Master valve



G. W. CARR Oct. 12 1926.

MASTER VALVE Filed Nov. 7

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1N fr-'1* sera/wss vv. :AF-7H Patented Oct.` 12, 1926.

UNITED STATES GEORGE WORTHINGTON CARR, OF BUFFALO, NEW YORK.

MASTER VALVE.

Application filed November bly invention relates to improvenients in valves of the type which are more particularly designated as master valves in which a unitary lvalve member controls the passage of fluid through a plurality of conduits and the object oit the invention is to construct a valve of this character which will simultaneously and equally control the passage of fluid through a plurality of outlet conduits which pass therefrom and a further object ot the invention is to incorporate a safety valve in the master valve which can be adjusted to open at a predetermined pressure and so prevent the further passage of fluid through the outlet conduits. A still further object of my invention is to provide means for preventing the fluid in the valve chamber having egress through the inlet orifice before the valve. is manually closed.

Another object of my invention is to provide a valve having a relatively large fluid chamber-therein which will permit the equal distribution oitV fluid to each of the outlet conduits, and a final object of the invention is to construct a valve mechanism wherein the closing ot the valve makes each ot the conduits become independent ot the other whereby any passage of fluid there-between is cut oli".

My invention consists of a master valve constructed and arranged all as hereinafter more particularly described and illustrated in the accompanying drawing in which:

Fig. 1 is a transverse sectional view through the center of my valve, the valve being` shown in the open position.

Fig. 2 is ar-educed, side elevational view thereof, the valveV being shown in the closed position, part of the side wall being broken away to disclose the means whereby the valve is closed, and,

Fig. 3 is an endelevational view of my valve showing the outlet conduits.

Like characters oii'reference indicate corresponding parts in the different views.

1 is my valve casing which is of cylindrical form and provided in one end with an integrally 'formed end plate 2, such end plate having a plurality of orifices 3 therein into 'which are'inserted the ends of the outlet conduits 4. 5 are a plurality of nipples positioned in the orifices 3 in the inner face of the plate 2, being inserted into the 7, `1925. Serial No. 67,582.

ends of the outlet conduits 4, and having heads 51 projecting equidistantly from the inner face of the plate 2. i

A hollow stem 6 is provided centrally in the valve casing 1, one end being threaded into a centrally disposed orifice 7 in the plate 2. The stem 6 is alsov interiorly threaded atthis end and adapted to receive a shouldered bushing 8 which is threaded thereinto and 9 is a circular shoulder provided in the bore of the stein 6 intermediately of its length. 10 is a ball valve adapted to be seated upon the circular shoulder 9 being held in the closed position by means of the spiral spring 11 which ext-ends between such ball and the inner face of the bushing 8. It will be seen that'in order to alter the tension of the spring 11 vupon the ball 10 that it is merely y necessary to screw the shoulder 8 slightly in or out of the sleeve as desired.

, The opposite end of the stem 6 is also interiorly threaded and adapted to receive a threaded, reduced end 12 of a knurled thumb screw 13 upon the outer face of which is provided a screw connection 14 which is adapted to be connected to the source of fluid supply and 15 is a passage extending through the connection 14 and the screw 13 and communicating with the interior of the stem 6. 16 is a second ball valve adapted to be inserted into the interior ot the stem ,6 and rest against the face of the reduced portion 12 being retained in its closed position by means of a spiral spring 17 which extends between such ball 16 and the adjacent face of the circular shoulder 9. 18 are a plurality of orifices leading from the interior of the stem 6 to the interior of the valve casing 1.

For closing the open end of the valve casing 1 I provide a circular plate 19 having a shoulder 2O formed at its outer'A face, such plate being of the same diameter as the interior of the casing 1 and adapted to be slidable therein, being freely mounted upon the stem 6 which passes through a centrally positioned orifice 21, the inner end oi such driice being enlarged to receive a collar 9.2 integrally formed upon the stem 6. 23 is a lock washer inserted between the inner face of the head of the knurled thumb screwv 13 and the outer end of the stem 6. I also provide a ball race 24 upon the outer face of the plate 19 surrounding` the orifice 21, and are a plurality of ball bearings mounted in such race and adapted to bear against the inner face of the head of the knurled thumb screw 13.

Upon the inner face of the plate 19 l provide a resilient v-:ai` r 2G constructed of rubber or like material, an air tight joint beingi form d between its outer edge and the inner face of the easing 1. For insuring a tight closure at this pont. l provide circular flange of tapering` cross section on Yt periphery of the Washer.r such flange also bearing against the inner Wall of the easing', being tightly held in engagement therewith When fluid is admitted to the casing' under pressure. rl`he Washer 2S is secured in a groove 27 in the spindle 6.

By the provision of the lock Washer hetween the inner face of the head of the thun'lb screiv 153 and the outer end of the spindle G it Will be seen that the thumb screw is securely locked to the spindle and When rotated will rotate the spindle in the threaded orice 7 ot the plate 2 thus moving the spindle G7 Washer 2G, and plate 19 to and tro in the easing; depending' upon the direction in Which the .thumb screw 13 is turned. For preventing the plate 19 and Washer 2G being lrietionally carried around with the spindle 6 when it is rotated, l provide a longitudinally extended pin one end ot Which is secured in the inner face of the plate 19 passing through kthe lWasher 26 and extending into a longitudinal orifice 30 in Athe inner face .of the member 2, the end of such pin 29 movingto and fro in the orifice 30 as the plate 19 approaches and leave?l the plate '2.

The operation of my valve is as foll'ouy rllhe sereuv connection 14 on the outer face of the thumb screw 13 is suitably connected with the source of fluitL supply, the thumb screw having` been rotated in an anti-clockwise direction to move the plate 19 out ofthe easing 1 into the position shown in Figure 1. lllhen the fluid is admitted to the orifice 15 it passes inwardly impinging against the ball 16. moving Vit inwardly and overcoming;l the resistance of the spring` 17. The fluid noiv passes around the ball 1G and enters the interior of the-spindle 6, its further progress through the spindle being' prevented by the ball valve 10 held iu position by the spring- 11.. ils the fluid cannot pass the ball valve 10 it leaves the interior of the spindle through the orifices 18 and passes into the interiorof the casingY 1 from Where it passes through the passages 31 in the nipples 5 into the outlet fluid coneuits 1, an equal fluid pressure being admitted into each conduit.

lllhen the fluid in the reservoirs to Which the conduits lead rises to a predetermined pressure an equal pressure will be set up in the valve easing 1 and consequently in ein the several fluid to "e is connected y "i i sereu 123 in an se iY Y on thu= the l from the heads l the 'eener i which uml permit to enter lne valve chamber, ,any f able instrument such as a small rod or p of Wire may be inserted through the pan ig ivay 15 to open the ball valve lil and release tl lluid frein e chau'iber.

lien the reservoirs are filled and it is required to close the valve the rnurled tluunb screw 13 is rotated clockwise dirrction, nioving the vplate 19' inwardly in the casina' i 'ffice oi the until the inne position it the valve screwed into tl is on between .vill be seen that eon'imunicai I l l the dilierem` conduits is cut oi t a' fluid contained in each cond ceptaolei efr For releac. g; the 'fluid fluid receptacles 'it is 1.1 rotate the thumb screnv vision of the ball-bearings between the adjacent faces of the thumb c liv and plete have succe t 1 ss'lullv red ced the friction li-tiveen the rotatable thumb screu' and stationary plate to a mininuun.

From the above description Vit will be seen that l have devised a master valve through which it is possible to supply fluid at an equal pressure to a plurality of sources and have also devised means for simultaneously cutting; otl the passage of fluid thereto, an equal fluid pressure being therefore obtained at each source. Furthermore l have devised means whereby a predetermined fluid pressure is only permitted to be reached; should this pressure be exceeded the safety valve opens and permits the excess fluid to pass out ot the valve into the atmosphere. By the provision of the ball valve 1G l have provided a means for preventing` a haelt pressure of fluid leaving' the valve ctn-.sing` through the inlet opening,

lllhat I claim as my invention is 1. A valve comprising,r a chamber having a fluid outlet orifice therein, a hollow spindie positioned in the chamber, a fluid inlet lijf;

lll)

in the hollow spindle, means whereby the Huid is adapted to pass from the hollow spindle into the chamber, and means in the chamber and closing one end thereof adapted to be operated by said spindle for controlling the passage of fluid from the chamber into the outlet orifice.

2. A valve comprising a chamber having a fluid outlet orifice therein, a hollow spindle positioned in the chamber, a fluid inlet in the hollow spindle, means whereby the fluid is adapted to pass from the hollow spindle into the chamber, and a valve member closing one end of the chamber and having movement in the chamber for covering and uncovering the outlet orifice, said valve idrember adapted to be moved by said spin- 3. A valve comprising a chamber having a fluid outlet orifice therein, a hollow spindle positioned in the chamber, a fluid inlet in the hollow spindle, means whereby the fluid is adapted to pass from the hollow spindle into the chamber and a safety valve in the hollow spindle adapted to open when a predetermined pressure is reached in the valve chamber.

4. A valve comprising a chamber having a Huid outlet orifice therein, a hollow openended spindle positioned in the chamber, one end of said spindle constituting a fluid inlet to the chamber and the other end of said spindle communicating with the atmosphere, means whereby the fluid is adapted to pass from the inlet end of the hollow spindle into the chamber, a pair of resiliently retained, normally closed valves in the hollow spindle, one of said valves being adapted to open to permit the passage of fiuid under pressure into the valve chamber, and the other valve controlling the passage of the fluid from the valve chamber to the atmosphere through the "hollow spindle, the resilient retaining means of the first-mentioned valve being weaker than the resilient retaining means of the second-mentioned Y valve so that the fluid pressure entering the valve chamber is suflicient to open the weaker valve and insufficient to open the stronger valve, the valve having the stron'ger resilient retaining means adapted to open to the atmosphere when a predetermined fluid pressure is attained in the valve chamber.

5. A valve comprising a chamber having a fluid outlet orifice therein, a hollow openended spindle positioned in the chamber having orifices therein communicating with the valve chamber, one end of said spindle constituting a fluid inlet to the chamber and the other end of said spindle communicating with the atmosphere, a pair of normally closed valves in the spindle, one on either side of the orifices which communicate with the valve chamber, one of said valves being adapted to open under a predetermined fluid pressure to permit such fluid to enter the valve chamber through the orifices in the spindle and the other valve being adapted to control the passage of fluid from the valve chamber through the end of the open-ended hollow spindle which communicates with the atmosphere and adapted to openy when the fluid' pressure in the chamber exceeds apredetermined amount.

6. A valve comprising a chamber having a plurality of fluid outlet orifices therein, nipples having heads thereon, each adapted to be inserted into an orifice so that theA GEORGE WORTHINGTON CAR-R. 

